I audited my SEC pipeline, found 82.7% of split adjustments were wrong

About I audited my SEC pipeline, found 82.7% of split adjustments were wrong

This pipeline fetches SEC EDGAR 10k and 10q filings of more than 600 companies, extracts the XBRL facts, computes derived metrics, and links them to yfinance course data. This data stream is as pure as possible.

In the maker’s words

Hello HN! I built a pipeline which fetches SEC EDGAR 10k and 10qs for more than 600 companies, maps xbrl-tags onto around 35 financial concepts and computes growth- , fundamental- and valuation-multiples (prices provided by yfinance). This project originated bc I wanted clean, non-third-party financial data in order to judge a trading thesis of mine. I could not find any app providing such data (for free), let alone being open source. Turns out there are no data providers because xbrl of 10ks and 10qs SUCKS(!!!!). It is messy, unregulated and devastated. Its the wild west of finance. A project like this was 5 years ago not possible, at least not with less than ~1000 people. Thats because of the nature of xbrl-tags. Since they are unregulated, a certain xbrl-tag could fit perfectly for a certain company, while providing nothing, only a partial amount, or complete garbage for another compa…

Where people found it

• Hacker NewsShow HN: I audited my SEC pipeline, found 82.7% of split adjustments were wrong4 points0 comments28 days ago